Firefox doesn't set document.referrer despite the correct referrer-policy

Question

I have a problem with Firefox not setting document.referrer property even though the referrer-policy is set in strict-origin-when-cross-origin. All other browsers (I checked Chrome, Safari and Edge) set this property correctly (in origin, i.e. https://google.com). Steps to reproduce:

• open https://www.weltbild.de/
• click any link on the page
• check document.referrer in console
  • it's set in 'https://www.weltbild.de/' in Chrome, Edge, and Safari
  • it's empty in Firefox (I'm using fresh installation of 114.0.2 (64-bit) version)